- Cephalosporin antibiotics
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The present invention relates to a cephalosporin compound represented by the following general formula (I): STR1 its pharmaceutically acceptable non-toxic salt, physiologically hydrolyzable ester, hydrate or solvate, or isomers thereof, in whichR 1 represents hydrogen or an amino-protecting group,R 2 and R 3 can be identical or different and independently of one another represent hydrogen or a hydroxy-protecting group, orR 2 and R 3 together can form a cyclic diol-protecting group,R 4 represents hydrogen or a carboxyl-protecting group,R 5, R 6 and R 7 independently of one another represent hydrogen, amino or substituted amino, hydroxy, alkoxy, C 1-4 alkyl, carboxyl or alkoxycarbonyl, orR 5 and R 6 together with the carbon atoms to which they are attached can form a C 3-7 cycle, andQ represents CH or N,and to a process for preparation thereof and a pharmaceutical composition containing the compound (I) as an active ingredient.
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